Convergence indicator for marine and flight vehicles

Details Convergence indicator for marine and flight vehicles Convergence indicator for marine and flight vehicles

1980-07-21

1982-08-10

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

340286M, 340525, 340711, 343112CA, 114144E, 364461, G08G 302, G06G 778

Patent

active

043440657

ABSTRACT:
A visual aid for boat skippers to which a skipper inputs information about the relative position of another observed boat and a navigation light color which he observes. The device has a group of input switches each indicating a possible relative position of the second boat. Another group of switches indicates the possible navigation light colors of red, green and white. A display signals whether the input combination of position and lights is a potential collision condition. A collision detecting logic circuit connects the switches to a display for actuating the display in response to actuation of selected combinations of the switches.

REFERENCES:
patent: 3310806 (1969-03-01), Stansbury
patent: 3849782 (1974-11-01), Bond
patent: 3939334 (1976-02-01), Roth et al.
patent: 4182171 (1980-01-01), Looker

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